Integration of Uniied Accelerator Libraries with Cesr

The performance of an accelerator depends to a large extent on the quality of the theoretical algorithms and the level of their integration with the control software. Modern accelerator facilities are complex industrial-scale systems that are characterized by tightly bound, diverse scienti c and technical problems. New severe requirements for accelerator parameters result in the strong specialization of scientists on particular physical e ects, algorithms, or technologies. On the other side, the accelerator overall performance is determined by a variety of combined heterogeneous e ects and requires steering theoretical and experimental activities of several laboratories in a common direction. There is a present need for a software environment that will facilitate reuse and integration of diverse accelerator algorithms, provide compatible and independent implementation of critical applications, and promote standardization of the best accelerator solutions and approaches. The Uni ed Accelerator Libraries (UAL[1]) has been addressed to solving this task. The UAL is an object-oriented and modular software environment for accelerator physics which comprises an accelerator object model for the description of the machine (SMF, for Standard Machine Format), a collection of Physics Libraries, and a Perl interface that provides a homogeneous shell for integrating and managing these components. At this time, the UAL joins several libraries: Platform for Accelerator Codes (PAC[2]), a collection of Accelerator Objects that can be shared, exchanged, or converted by other codes and processes; TEAPOT++, a collection of C++ physics modules conceptually derived from TEAPOT[3]; ZLIB++[4], a di erential algebra package for map generation; and Accelerator Libraries' Extensions (ALE), a collection of the UAL extensions, such as adaptors, user-friendly interfaces, DA Runge-Kutta and Lie integrators, and others. This software environment has been used to build LHC and RHIC models and to simulate their performance [5][6]. The reported work presents the design and implementation of the UAL-based CESR o -line simulation module.